Do not depend on Elastic License 2.0 packages in @apollo/subgraph

[aarne]

Issue Description

Currently subgraph has a dependency on @apollo/federation-internals which is licensed under Elastic License 2.0.

This unfortunately breaks the All subgraph libraries under @apollo/subgraph will remain MIT-licensed promise

Link to Reproduction

https://www.apollographql.com/blog/moving-apollo-federation-2-to-the-elastic-license-v2

Reproduction Steps

No response

[meldsza]

We are facing the same issue. We would like to use this library but as the dependency (federation internals) has an elastic licence and the majority of the logic exists in this repo, we are unable to use this library under MIT. Please clarify the licence for this library